Roller vane pump

Details Roller vane pump Roller vane pump

2005-02-22

2005-02-22

Trieu, Theresa (Department: 3748)

Rotary expansible chamber devices

With changeable working chamber magnitude

By cylinder or cylinder portion pivotal movement

C418S225000, C418S082000

Reexamination Certificate

active

06857862

ABSTRACT:
A fixed displacement pump includes a housing having a cavity, an inlet, and an end cap with alignment portions therein. A cam ring pivotally associated within the cavity includes adjustment portions. The cam ring is aligned in a fixed position via a pin inserted through both a select adjustment portion and a corresponding alignment portion. The adjustment portion selected determines both rotational direction and displacement of the pump. The cam ring also includes recesses positioned adjacent the inlet to facilitate porting of fluid through the pump. A rotor mounted within the cam ring includes roller slots having groove segments. The groove segments are positioned in an arcuate arrangement about the rotor to facilitate porting of fluid through the pump. The rotor also includes undercut portions positioned between the roller slots in an arcuate arrangement on an outer edge of the rotor to facilitate porting of fluid through the pump.

REFERENCES:
patent: 1728321 (1929-09-01), Antonelli
patent: 1749121 (1930-03-01), Barlow
patent: 1819689 (1931-08-01), Ott
patent: 2460018 (1949-01-01), Looke
patent: 3025802 (1962-03-01), Browne
patent: 3072067 (1963-01-01), Beller
patent: 3402672 (1968-09-01), Cook
patent: 3402891 (1968-09-01), Clark et al.
patent: 3415058 (1968-12-01), Underwood et al.
patent: 3734654 (1973-05-01), Burenga et al.
patent: 4342545 (1982-08-01), Schuster
patent: 4531893 (1985-07-01), Okoh et al.
patent: 4538974 (1985-09-01), Stich et al.
patent: 4566870 (1986-01-01), Kahrs
patent: 4578948 (1986-04-01), Hutson et al.
patent: 4627237 (1986-12-01), Hutson
patent: 4659296 (1987-04-01), Bristow
patent: 4673341 (1987-06-01), Bristow
patent: 4679995 (1987-07-01), Bristow
patent: 4692105 (1987-09-01), Leroy
patent: 4828468 (1989-05-01), Sipe et al.
patent: 6152711 (2000-11-01), Van Wijk et al.
patent: 6312243 (2001-11-01), Vab Wijk et al.
patent: 6325602 (2001-12-01), Rademacher
patent: 6375445 (2002-04-01), Van Wijk et al.
patent: 6382924 (2002-05-01), Van Der Sluis et al.
patent: 6398528 (2002-06-01), Hansen et al.
patent: 6413066 (2002-07-01), Van Der Sluis et al.
patent: 6416303 (2002-07-01), Van Der Sluis et al.
patent: 6447277 (2002-09-01), Van Der Sluis et al.
patent: 6464482 (2002-10-01), Van Der Sluis et al.
patent: 20020119060 (2002-08-01), Gentile et al.
patent: 04269387 (1992-09-01), None

Affiliated with

Also associated with

Rating

Roller vane pump does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Roller vane pump, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Roller vane pump will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3510754